What do the police say about the alleged drug dealing?

The police said that they are compiling evidence to address the problem, but need more help to build a "full intelligence picture."

A spokeswoman from Cambridgeshire Police said: "We are aware of issues relating to the dealing and use of drugs in the Midsummer Common area and are gathering evidence to be able to address this issue.

"We ask that members of the public continue to report any concerns in order for us to build up a full intelligence picture to tackle it."